Rock-drill support.



0. 1. onouRKEaL F. n. HoLnswunm RQCK DRILL SUPPORT. H APPLICATION FILED SEPT-2l. 1911.

Patented Mar. 6, 1917.

V0.1. onouaKE @L F.' n.y HoLnswonTH.

ROCK D-RILL SUPPORT. APPLICATION FILED SEPT.2I| 191 I.

Patented Mar. 6, 1917.

2 SHEETS-SHEET 2.

am my @www Oo 'UNITED STATES PATENT OFFICE.

DANIEL J. onounxn AND FRED D.- HoLDsWonTH, or CLAREMONT, NEW HAMrsHrnn,

ASSIGNORS, BY MESNE ASSIGNMENTS, TO SULLIVAN MACHINERY COMPANY, OF

BOSTON, MASSACHUSETTS, A CORPORATION MASSACHUSETTS.

BooK-DRILL SUPPORT.

Specication of Letters Patent.

. ratente Mar. e, 1917.

Application led September 21, 19\11. Serial No. 6563,602.

To all whom may concern:

Be it known that we, DANiEL J. OROURKE and FRED D. HoLDswoRTH, both citizens of.

the United States, residing at Claremont, county of Sullivan, State of New Hamp-l shire,' (whose 'post-oliice addresses are care of Sullivan Machinery Co.,A 30` Ch'urcli Connection withv the accompanying drawings, is a specification, like characters on the drawings representing like parts.

This invention relates to rock drills and rock -drill supports, being more particularly n and Weight resu ting *from the `greater length of"` feed.

To avoid loss of time due to the frequent changing of the drill steel, it is desirable to increase the length of feed in a rock drill. When the length of feed is increased,

however, the length of'theshell, feed screw and other 4parts must also be increased so that it becomes.` heavier and more diilicult to move particularly since this increase in 'weight` requires a corresponding increase in weight of the supporting tripod. We

have provided in the herein described emcured to the back of the shell and having bodiment of our invention a drill having a length offeed much in excess of that ordinarily employed and have utilized in connection wlth it al drill support of such a nature that the entire apparatus can be rolled about the quarry bottom from one pointto another while capable' `of being quickly placed upon its upporting legs and eifectively operated therseon. l

l; The invention will be best understood by reference to the following'lgdescription when taken in connection With the accompanying illustration of one specic embodiment thereof, while its, scope willA be more articularly pointed out in the appended claims. l In thedrawings: l Figure 1 `is a front elevation v`of a rock drill and its support embodyingone form of our invention, such drill being set in positign for operating. i i

Fig. 2 is a side elevation of the same machlne.

Fig. .3 is aside elevation of the same 1na chine when in condition for being moved to another point.

F'g. 4 is a sectional detail showing "the attachment of the shell to the supporting bar; and v Fig. 5 is a rear elevation of the shell clamp. y v

Fig. 6 is a cross section of the hub of the Wheel 33 and. axle 35 showing -one form of y means for clamping said Wheel to said axle.

Referring to the drawings and to the embodiment of our invention therein disclosed, We have shown for illustrative purposes a pressure-iiliid-actnated rock drilling engine 1 which may be ofany usual or ordinary `construction mounted upon a shell 2 which provision is preferably made so that the` feed screw can be motor driven, this being effected in the illustrated machlneby means of the pressure-fluid reversible motor 5se' the controlling handle 6. `Such motor has the driving shaft 7 connected -to turn the feed screw through the spur gears -8 and 9.

To support the shell the latter is secured to,V a saddle 1 0 of 'usual construction, the

saddle in turn being clamped by thecap piece 11 to the sleeve 12 which latter is grooved to engage with the key or feather 13 carried by the transverse supporting bar 14. The sleeve projects beyondthe saddle clamp at one side and has a depending portionl` in which is `journaled a spur gear 16 meshing with the tecthjof a rack 17 Von the underside' of the supporting bar 141.

The spur gear is secured to a shaft 18 to the outer end of which a crank handle may be applied to turn the gear. Means are thus provided whereby the drill shell may be clamped in any desired position of angular port for ,the drill.

adjustment about the Vsleevev12 and in that clamped position may be moved as required along the supporting bar by turning the gear 16.

To support the bar the latter is provided with supporting legs which herein comtion of the `lwheels may the legs.

`When it is required to move the drill from one point to another, the drill having been prise a pair of front'legs 19 and a. back leg by means of clamps 21 and are provided at their lower ends with adjustable points 22 threaded into the nuts 23 which-latter are split. so that they may be clamped to prevent the screws from turning after they have been adjusted.

'The front legs 19 may be held at any desired angle by means of vtheback leg 20, which latter may be tipped to different inclinations about the supporting bar 14 and is also provided with anv adjustable point 24 secured in the socket 25 on the back leg by means of a set screw .26. The inclination of the front legs may be varied by adjusting the length of the point 24 in or out oi' its socket.

The back leg or brace at its uppe ends is made Y-shaped, each end being c amped to the adjacent front leg clamp 21 by means of a bolt 27 passing entirely thro-ugh the supporting bar 14. The upper ends of the back leg brace are provided with conical heads 28 which fit .conical recesses in the clamps 21 so that the bolt may be loosened 'and the legs Ladjusted to various angular positions. 'l

In order to. prevent the legs from opening or spreading too far, the upper ends of the back leg'brace'are each provided with a stop lug 29 which is adapted to engage with the adjacent clamp 21 vwhen the legs are spread open and prevent the back `leg from swinging beyond a certain point in relation to the front leg Preferaldy means are provided forbracvrolled upon its wheel support as described,

the back leg can be swungto the position shown in Fig. 3, bringing the stop 29 against the clamp 2 1 and the back leg 'usedaS a pole by the operator to lpush the apparatus ahead of him. The stop 29 also prevents the-upper part of the drill with the feed screw rotating mechanism from striking the v.ound

`should the apparatus be dropped. gjthis' y positionI the front legs are above'. the apparareached where the drill is to be used it ca be set in position by merely tipping it for?A A Ward -o'n the points 22 and ,adjusting the lfrom the hole.

tus and projecting forwardly andA downbe usted along wardly so that when the "point has been.;A

back leg to give it the requiredinclination and stability- In order to facilitate liftingthe long and l i heavy drill steel from the drilled hole when it is vrequired to change steels or after the hole has been drilled, means are preferably provided upon the apparatus itself where-- by the drill steel can be mechanically lifted For this purpose we have herein provided the Vrope windin drum. 37 adapted to windin the rope or ca le 38, the latter passingv up and through the sheave 39 and having a depending end 40 adapted to befastened lto the projecting end of the ing the lower end of the drill shell, such means'being herein embodied in the brace rod 30 which is swiveled -to the back side of the shell,`such rod being adjustably fixed yin the clamp 31 mounted upon a transverse' angle iron 32 secured to the back legs.

To provide means for moving the drill from one point to.another a wheeled sup ytrundled fronr one `.point to another. The

wheels33 and 34 are-mounted on the axle 35v which latter is free to revolve in thecastv` ings 36, the latter adjustably clamped4 each steel and lift the same from the hole when the drum is turned.` The sheave 39 is supportedvupon the curved upright arm 41, having telescopic connection witha second upright member 42, the latter being clamped in the brackets 43 secured at the side of the drill shell.` By means of the telescopic joint the'arm 41 can be adjustably raised or lowered to accommodate different lengths of steels.

The rope windingfdrum 37 may be turned i by any desired means, but for simplicityy we have herein shown the same as fixed upon f` the axle 35. The wheels-33 and 34 are noirwhen it is desired 'to withdraw aA steel from the -drill hole one of the wheels, 'for example the wheel 33, may be se'tup tight on the axle `mally`free to revolve upon the axle, but l in any suitableway or v manner as b-y tighten'ing a clamping screwibolt 44, for example Fig. 6, which has screw threaded engagement with a threaded hole extended through .the hub 45 of said wheel 33, the inner end of said screw bolt engaging the axle 35, and

said wheel 33 can then be used as acrank `wheel to turn the drum 37 .and wind in the rope or cable 38. The 4wheelsmay be entirely removed from the axle if required during the drilling operation.

In utilizing the drin steel naingaaach! ment, the. cut having been nished with a to one of thefront legs 19 so thatithe posigiven drill steel, the drill shell is shiftedl along the supporting bar 14 to the right hand side thereof as viewed in Fig. 1. The 4drill steel having been previously detached from the chuck the curved arm l1 is then swung over the drill steelI and the end of the rope or cable 38 fastened thereto and the steel hauled up from the hole. A fresh steel can then be inserted andV thedrill shellshifted backl and the drill attached to the fresh steel. f

wWhile we have herein sho'i'vn for purposes of illustration one specific embodiment of the invention, it is to be understood that the same is not limited to the constructional details ofthe parts herein disclosed, but that extensive deviations may be made from the illustrated embodiment without departing from the spirit of the invention.

. Claims: 4

1. The combination with a rock drill of a working support therefor, comprising oppositely inclined angularly adjustable legs on which the drill may be raised or lowered,

and a lwheeled support also connected to said drill and located to receive the weight of the drill when the latter is lowered by spreading the legs.

2. The combination with a rock drill of a support therefor comprising angularly adjustable inclined supporting legs, and a. pair of rotatable supporting wheels upon an axle between the legs and adapted to-be lowered to receive the weight of the drill when the legs are spread,

3. The combination with a rock drill of a tripod support comprising a pairof front legs and a back leg and a pair of rotatable supporting wheels upon an axis between the front and back legs,said Wheels being normally oli' the round when the drill is in operative position, but adapted to be lowered and receive the weight of the drill when the legs are spread.

4. The combination with a rock drill of a supporting shell therefor, a support about whichsaid shell may be clamped to different y said shell support and located normally to 55. "-leg support therefor, said support being adfeo positions of angolari, adjustment, angularly adjustablesupporting legs for said shell support, and shell supporting wheels, said wheels being on a diierent axial line from be above the ground but adapted to be dropped thereto and receive the Weight of the drill -when said legs are spread.

5. The combination with a rock .drill of a justable to hold the drill at different mclinations, supporting wheels for saidl drill, a rigid frame securing said wheels to said leg support, and means for fixing said leg sup- -port to hold said wheels above the ground or 'for' tipping the same' to drop said -wheels upon the ground to support the drill.

6. The combination with a rock drill of.

a leg support comprising apair of4 front and certain of said legs, and a pair of rotatable supporting wheels disposed between the legs and adapted to be lowered to receive the weight of the drill when the legs are spread.

A8. The combination with a rock drill, of a support therefor comprising angularly adjustable inclined supporting legs, one of said legs being movable and adapted to'form a tongue, and a pair of rotatable supporting wheels disposed between the legs and adapted tobe lowered to receive the Weight of the drill when the legs are spread.

9, The combination with a rock drill, of drill carrying 1neans,'a support for the latter including angularly adjustablel supporting legs, and wheels carried on said support and normally located above the ground but adapted to be dropped thereto and receive the Weight of the drill when said legs are spread.

10. The combination with a rock drill of the legs 19, the supporting bar 14, wheel supports 36, wheels 34, axle 35, and back'leg brace 20.

1l. The combination with a rock drill of a leg support therefor, Wheels secured to said leg support, said drill being adapted to be tipped to rest upon said legs or said 4 Wheels-atwill, and said leg support including a combined'brace and pole member pivotally connected to said support at a point above said wheels, and a stop on said member limiting the movement thereof.

12. The combination With a rock drill hav- I ing a leg support, supporting wheels on Whichthe drill may be supported when said leg support is tipped and a second leg support, 'of a drill shell and a brace member between the lower end of the shell and said y second leg support, said wheels being located between the legs of said two leg supports.

13. The combination with a rock drill of a support, means connected to said support for moving the drill bodily `from place to place, Vmeans to shift the drill laterally upon lifting means for withdrawing a steel from 'the cut operatively connected to said wheel support.

1G. The combination with a. rock drill, of drill feeding means; a drill support; means to Shift the drill laterally upon the latter; a wheel support and a leg support, either said wheel support or said leg support being separately usable at will; a cable winding drum supported by the drill and rotatable by said wheelsg a, cable secured to said drum for lifting a steel from the out, after the drill 2o has been shifted; cable guiding' means; and means for holding said cable guiding means at an elevated position above the apparatus.

In testimony whereof, we have signed our -names to this specification, in the presence 25 of two subscribing yvitnees.

DANIEL J. OROURK. FRED D'. HOLDSWORTH.

Witnesses for Daniel J. O-Rourkez ARTHUR HOFFMAN, Jos H. BROWN, Jr. lVitnessesfor Fred D. Holdsworth:

GEORGE W. PELMAN, D. W. CLARK.

,It is hereby certified 'that in Letters Patent No. 1,218,604, granted Merch 6, 1917, upon the application of Daniel J. o'Rouri mi Fred D. Holdsworih, pf Claremont, New Hampshire, for en improvement in Rock-Dri1l Supports," errors Pega 3, line 138iL claim 3, .for the word axis read axle; same page, lino 72, claim 6i after the worxi groundi' insert the word or; and that the said Letten Patent should be read appear in the printed 'specification requiring correction es follows:

with these corrections therein that the saine may conform to the record of the case in the Patent Oce.

Signed and sealed this 5tii dey of Manch, A. D., 1918.

R. F. WHITEHEAD, Acting Commissioner of Patents. 

